Main
Denis Ostroushko
Education
University of Minnesota
MS Biostatistics 3.845 GPA
Minneapolis, MN
Expected 2024 - 2022
University of Minnesota - Morris
BA Mathematics, Statistics 3.43 GPA
Morris, MN
2019 - 2015
Professional Experience
Healthcare Analyst I & II
Medica
Minneapolis, MN
August 2023 - June 2019
- Collaborated with business owners to assess member assistance programs. Used statistical models and simulations to understand cost savings distribution. Developed a strategy, resulting in an additional $1,000,000 annualized savings.
- Collaborated with member identification team to improve risk models for hospital readmission. Developed a set of predictive models. Best classifier improved AUC score by 15%.
- Automated actuarial completion factors model using SAS. Improved estimation granularity, reduced prediction error by 35%. Reduced delivery time for the final product.
- Led the introduction of benchmarks from Milliman proprietary software. Improved identification of cost savings opportunities and increased strategy transparency.
Research Experience
Graduate Research Assistant
Master’s Thesis
Minneapolis, MN
Present - August 2023
- Worked with Dr. Julian Wolfson to evaluate the impact of cohort definition on the analysis results. Used data from the Fairview Health System to conduct the study. Created a list of cohorts with varying patient inclusion criteria. Illustrated that cohort definition can result in vastly different analysis results and conclusions.
Graduate Research Assistant
Research Group Name
Minneapolis, MN
Present - August 2023
- Developed a pipeline to identify important predictors of Alzheimer’s Disease (AD) from lipidomics ADNI data. Generalized pipeline to other genomics data sets.
- Developed and compared multiview data integration methods (SIDA, iDeepViewLearn) to improve detection of at-risk of AD patients among ANDI cohort population.
Research Assistant
Truckers & Turnover Research Project
Morris, MN
2019 - 2018
- Managed scripts to produce publication materials. Presented results of medical cost analysis for truck drivers with OSA as a poster. Helped develop a bootstrap simulation to estimate variance of cost differences.